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Finding the Fourth Proportional to 66,055, 91,086.42 and 50,950.12

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Solution

The fourth proportional to 66,055, 91,086.42 and 50,950.12 is: 70,257.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,055 : 91,086.42 = 50,950.12 : x
  2. Step 2: Convert to fraction form
    66,055/91,086.42 = 50,950.12/x
  3. Step 3: Cross multiply
    66,055x = 91,086.42 × 50,950.12
  4. Step 4: Simplify right side
    66,055x = 4,640,864,029.37
  5. Step 5: Solve for x
    x = 4,640,864,029.37/66,055
  6. Step 6: Final answer
    x = 70,257.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.